No Angel is the debut studio album by English singer-songwriter Dido. Originally released on 1 June 1999 in the United States, the album found a mass audience when it was released worldwide in February 2001. By 2003, the album had sold more than 15 million copies worldwide, and was the second best-selling album of the 2000s in the United Kingdom, behind James Blunt's Back to Bedlam.

As of 2015 No Angel is the 27th best-selling album in UK chart history. In 2019 it was listed the ninth best-selling album of the 21st century in the UK. It was also among ten albums nominated for the best British album of the previous 30 years by the Brit Awards in 2010, ultimately losing to (What's the Story) Morning Glory? by Oasis.

Recording for the album began when Dido officially signed a record deal with Arista Records. As well as recording ten new tracks, Dido took two previously recorded tracks from her demo collection, Odds & Ends, and used them for the album, with "Take My Hand" appearing in its original form, and "Sweet Eyed Baby" being remixed to create "Don't Think of Me". During recording for the album, a deal to release the album in the US was finalised, however, a deal to secure European sales of the album was not completed, thus meaning that when the album was released in June 1999, it was released exclusively in America. Prior to the album's release, a promotional sampler titled The Highbury Fields EP was issued to radio stations, featuring four tracks from the album, and "Worthless", another track from the demo collection Odds & Ends.